Gas-Liquid Chromatographic Determination of Maleic Hydrazide in Tobacco and Tobacco Smoke
1979 ◽
Vol 62
(1)
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pp. 171-175
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Keyword(s):
Abstract A method is presented for the determination of the plant growth regulator maleic hydrazide (MH; l,2-dihydro-3,6-pyridazinedione) in tobacco and tobacco smoke. Residues are converted to the bis(trimethylsilyl) derivative before analysis by gas-liquid chromatography. The method has been applied to cigarettes and condensed smoke and has been used to determine the per cent transfer of MH into cigarette smoke. Free MH residues could be determined directly on the tobacco samples, whereas total MH values were obtainable only after acid hydrolysis. In spite of large MH residues in tobacco, only 0.2% of the MH was transferred into smoke.
1977 ◽
Vol 60
(6)
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pp. 1307-1309
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1978 ◽
Vol 61
(3)
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pp. 636-639
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1974 ◽
Vol 57
(1)
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pp. 182-188
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